Fatigue and fractureFatigue crack propagation resistance of ductile TiNb-reinforced γ-TiAl intermetallic matrix composites
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Cited by (21)
Microstructural evolution during annealing of a powder metallurgical TiAl–Nb composite and its effect on mechanical properties
2023, Journal of Materials Research and TechnologyHigh temperature micro-deformation behavior of continuous TiNb fiber reinforced TiAl matrix composite investigated by in-situ high-energy X-ray diffraction
2022, Materials Science and Engineering: ACitation Excerpt :As a result, TiNb fiber is considered to be a promising reinforcement to improve mechanical properties of TiAl alloy. In the past studies about TiNb/TiAl composites, it was chiefly focused on macro-deformation behavior and worked on the static result [18]. Previous research by the authors suggests that, when deformation occurs at 850 °C which is above ductile-to-brittle transition temperature for TiAl matrix, the strength of TiNbf/TiAl composites will decrease obviously compared with deforming below 800 °C [15].
Phase transformation and deformation behavior of a TiAl–Nb composite under quasi-static and dynamic loadings
2022, Materials Science and Engineering: ACitation Excerpt :Further improvement in the ductility thus remains an attractive goal of the γ-TiAl alloy development. It has been demonstrated that adding ductile particles into a brittle matrix could effectively toughen the alloys [13,14]. Thus, different ductile alloys (α-Ti, Ti–6Al–4V and Ti–Nb), metal fibers and whiskers (Mo, Nb, and TiNb), and even C fibers coated with graphene were introduced to TiAl intermetallics [13–23].
Structure-property-process parameters correlation of laser additive manufactured TiC dispersed titanium aluminide (Ti45Al5Nb0.5Si) composite
2021, IntermetallicsCitation Excerpt :Small quantities of Ti2AlC addition has been reported to enhance the toughness and hardness of γ-TiAl [13,14]. In the past, attempts have been made to develop composites with the reinforcement of ductile particles like TiNb [15,16], brittle particles like TiB2 [17,18], Ti2AlC [19], Ti2AlN [20], TiB2+Ti2AlN [21] and ceramic particles [22,23]. Properly designed and utilized laminated composites can greatly improve the mechanical performance of structural parts.